Print quality difficulties; Network difficulties(MFC-7345N, MFC-7440N and MFC-7840W only); Paper handling difficulties (continued)- Page 111

Troubleshooting and routine maintenance

97

B

How do I print on envelopes?

You can load envelopes from the manual feed slot. Your application must be set 
up to print the envelope size you are using. This is usually done in the Page Setup 
or Document Setup menu of your application. (See your application’s manual for 
more information.)

Which paper can I use?

You can use plain paper, recycled paper, transparency and labels that are made 
for laser machines. (For details, see 

Acceptable paper and other print media

on page 14.)

There is a paper jam.

(See 

Paper jams

 on page 114.)

Print quality difficulties

Difficulties

Suggestions

Printed pages are curled.

„

Low quality thin or thick paper or not printing on the recommended side of the 
paper could cause this problem. Try turning over the stack of paper in the 
paper tray.

„

Make sure that you choose the Paper Type that suits the print media type you 
are using. (See 

Acceptable paper and other print media

 on page 14.)

Printed pages are smeared.

The Paper Type setting may be incorrect for the type of print media you are using, 
or the print media may be too thick or have a rough surface. (See 

Acceptable 

paper and other print media

 on page 14 and 

Basic tab in the Software User’s 

Guide on the CD-ROM

.)

Printouts are too light.

„

If this problem occurs when making copies or printing received faxes, turn 
Toner Save mode to off in the machine menu settings. (See 

Toner save

on page 22.)

„

Set Toner Save mode to off in the Advanced tab in the printer driver. (See 

Advanced tab in the Software User’s Guide on the CD-ROM

.)

Network difficulties(MFC-7345N, MFC-7440N and MFC-7840W only)

Difficulties

Suggestions

Cannot print over a wired Network. If you are having Network problems see 

the Network User's Guide on the CD-

ROM

 for more information.

Make sure your machine is powered on and is on-line and in the Ready state. 
Print the Network Configuration list to see your current Network settings. (See 

How to print a report

 on page 68.) Reconnect the LAN cable to the hub to verify 

that the cable and network connections are good. If possible, try connecting the 
machine to a different port on your hub using a different cable. If the connections 
are good, the lower LED of the back panel of the machine will be green.

Paper handling difficulties (continued)

Difficulties

Suggestions